]>
Commit | Line | Data |
---|---|---|
1 | # | |
2 | # This file is subject to the terms and conditions of the GNU General Public | |
3 | # License. | |
4 | # | |
5 | # Adapted for MIPS Pete Popov, Dan Malek | |
6 | # | |
7 | # Copyright (C) 1994 by Linus Torvalds | |
8 | # Adapted for PowerPC by Gary Thomas | |
9 | # modified by Cort (cort@cs.nmt.edu) | |
10 | # | |
11 | # Copyright (C) 2009 Lemote Inc. & DSLab, Lanzhou University | |
12 | # Author: Wu Zhangjin <wuzhangjin@gmail.com> | |
13 | # | |
14 | ||
15 | # compressed kernel load addr: VMLINUZ_LOAD_ADDRESS > VMLINUX_LOAD_ADDRESS + VMLINUX_SIZE | |
16 | VMLINUX_SIZE := $(shell wc -c $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | cut -d' ' -f1) | |
17 | VMLINUX_SIZE := $(shell [ -n "$(VMLINUX_SIZE)" ] && echo -n $$(($(VMLINUX_SIZE) + (65536 - $(VMLINUX_SIZE) % 65536)))) | |
18 | # VMLINUZ_LOAD_ADDRESS = concat "high32 of VMLINUX_LOAD_ADDRESS" and "(low32 of VMLINUX_LOAD_ADDRESS) + VMLINUX_SIZE" | |
19 | HIGH32 := $(shell A=$(VMLINUX_LOAD_ADDRESS); [ $${\#A} -gt 10 ] && expr substr "$(VMLINUX_LOAD_ADDRESS)" 3 $$(($${\#A} - 10))) | |
20 | LOW32 := $(shell [ -n "$(HIGH32)" ] && A=11 || A=3; expr substr "$(VMLINUX_LOAD_ADDRESS)" $${A} 8) | |
21 | VMLINUZ_LOAD_ADDRESS := 0x$(shell [ -n "$(VMLINUX_SIZE)" -a -n "$(LOW32)" ] && printf "$(HIGH32)%08x" $$(($(VMLINUX_SIZE) + 0x$(LOW32)))) | |
22 | ||
23 | # set the default size of the mallocing area for decompressing | |
24 | BOOT_HEAP_SIZE := 0x400000 | |
25 | ||
26 | # Disable Function Tracer | |
27 | KBUILD_CFLAGS := $(shell echo $(KBUILD_CFLAGS) | sed -e "s/-pg//") | |
28 | ||
29 | KBUILD_CFLAGS := $(LINUXINCLUDE) $(KBUILD_CFLAGS) -D__KERNEL__ \ | |
30 | -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull" | |
31 | ||
32 | KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ | |
33 | -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \ | |
34 | -DKERNEL_ENTRY=0x$(shell $(NM) $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | grep " kernel_entry" | cut -f1 -d \ ) | |
35 | ||
36 | targets := head.o decompress.o dbg.o uart-16550.o uart-alchemy.o | |
37 | ||
38 | # decompressor objects (linked with vmlinuz) | |
39 | vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o | |
40 | ||
41 | ifdef CONFIG_DEBUG_ZBOOT | |
42 | vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o | |
43 | vmlinuzobjs-$(CONFIG_MACH_ALCHEMY) += $(obj)/uart-alchemy.o | |
44 | endif | |
45 | ||
46 | targets += vmlinux.bin | |
47 | OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S | |
48 | $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE | |
49 | $(call if_changed,objcopy) | |
50 | ||
51 | suffix_$(CONFIG_KERNEL_GZIP) = gz | |
52 | suffix_$(CONFIG_KERNEL_BZIP2) = bz2 | |
53 | suffix_$(CONFIG_KERNEL_LZMA) = lzma | |
54 | suffix_$(CONFIG_KERNEL_LZO) = lzo | |
55 | tool_$(CONFIG_KERNEL_GZIP) = gzip | |
56 | tool_$(CONFIG_KERNEL_BZIP2) = bzip2 | |
57 | tool_$(CONFIG_KERNEL_LZMA) = lzma | |
58 | tool_$(CONFIG_KERNEL_LZO) = lzo | |
59 | ||
60 | targets += vmlinux.gz vmlinux.bz2 vmlinux.lzma vmlinux.lzo | |
61 | $(obj)/vmlinux.$(suffix_y): $(obj)/vmlinux.bin FORCE | |
62 | $(call if_changed,$(tool_y)) | |
63 | ||
64 | targets += piggy.o | |
65 | OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.$(suffix_y) \ | |
66 | --set-section-flags=.image=contents,alloc,load,readonly,data | |
67 | $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.$(suffix_y) FORCE | |
68 | $(call if_changed,objcopy) | |
69 | ||
70 | LDFLAGS_vmlinuz := $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T | |
71 | vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/piggy.o | |
72 | $(call cmd,ld) | |
73 | $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) $@ | |
74 | ||
75 | # | |
76 | # Some DECstations need all possible sections of an ECOFF executable | |
77 | # | |
78 | ifdef CONFIG_MACH_DECSTATION | |
79 | e2eflag := -a | |
80 | endif | |
81 | ||
82 | # elf2ecoff can only handle 32bit image | |
83 | hostprogs-y := ../elf2ecoff | |
84 | ||
85 | ifdef CONFIG_32BIT | |
86 | VMLINUZ = vmlinuz | |
87 | else | |
88 | VMLINUZ = vmlinuz.32 | |
89 | endif | |
90 | ||
91 | quiet_cmd_32 = OBJCOPY $@ | |
92 | cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ | |
93 | vmlinuz.32: vmlinuz | |
94 | $(call cmd,32) | |
95 | ||
96 | quiet_cmd_ecoff = ECOFF $@ | |
97 | cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag) | |
98 | vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ) | |
99 | $(call cmd,ecoff) | |
100 | ||
101 | OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary | |
102 | vmlinuz.bin: vmlinuz | |
103 | $(call cmd,objcopy) | |
104 | ||
105 | OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec | |
106 | vmlinuz.srec: vmlinuz | |
107 | $(call cmd,objcopy) | |
108 | ||
109 | clean-files := $(objtree)/vmlinuz.* |